diff --git a/deploy/checkout-repo.sh b/deploy/checkout-repo.sh
index 384724bf9..0ebee4ff3 100755
--- a/deploy/checkout-repo.sh
+++ b/deploy/checkout-repo.sh
@@ -11,7 +11,7 @@ fail() {
 # exit in case a command fails
 set -e
 
-git config --global --add safe.directory ${PWD}
+git config --global --add safe.directory "${PWD}"
 git init .
 git remote add origin "${GIT_REPO}"
 git fetch origin "${GIT_REF}"